3 Commits

Author	SHA1	Message	Date
Stefan Metzmacher	5303f6f7fd	s4:torture/smb2: add smb2.bench.read test ... This test opens one file for each loop (for nprocs * qdepth loops) and for each file it loops in read requests for the first io_size bytes. time smbtorture //127.0.0.1/m -Uroot%test smb2.bench.read \ --option="torture:timelimit=600" \ --option="torture:nprocs=1" \ --option="torture:qdepth=4" \ --option="torture:io_size=4096" In order to generate constant load for profiles --option="torture:looplimit=150000" can be used to stop after the given number of loops before the timelimit hits. Sometimes the bottleneck is the smbtorture process. In order to bring the smbd process to 100% cpu, you can use '--option="libsmb:client_guid=6112f7d3-9528-4a2a-8861-0ca129aae6c4"' and run multiple instances of the test at the same time, which both talk to the same smbd process. Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Volker Lendecke <vl@samba.org> Autobuild-User(master): Stefan Metzmacher <metze@samba.org> Autobuild-Date(master): Thu Jun 1 08:14:23 UTC 2023 on atb-devel-224	2023-06-01 08:14:23 +00:00
Stefan Metzmacher	5648836386	s4:torture/smb2: add --option="torture:looplimit=150000" to smb2.bench.echo ... Also see the commit message of 23988f19e7cc2823d6c0c0f40af0195d0a3b81bf for other examples... This test calls SMB2_Echo in a loop per connection. time smbtorture //127.0.0.1/m -Uroot%test smb2.bench.echo \ --option="torture:timelimit=600" \ --option="torture:looplimit=150000" \ --option="torture:nprocs=1" \ --option="torture:qdepth=1" This is a very useful test to show how many requests are possible at the raw SMB2 layer. In order to do profiling and being able to compare the profiles between runs, it is important to produce the exact same load in each run, which is not possible with the typical --option="torture:timelimit=600". E.g. when the server runs under 'valgrind --tool=callgrind bin/smbd' I typically run without "torture:looplimit" first in order to see, which rate is possible per second, then I'll add a "torture:looplimit" in order to run about half of the timelimit. Then the looplimit should run for some time, but finish before the timelimit. Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Volker Lendecke <vl@samba.org>	2023-06-01 07:20:31 +00:00
Stefan Metzmacher	d01db89d90	s4:torture/smb2: move benchmarking tests to bench.c ... I'll add more tests there soon Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Volker Lendecke <vl@samba.org>	2023-06-01 07:20:31 +00:00